447940 has 12 divisors (see below), whose sum is σ = 940716. Its totient is φ = 179168.

The previous prime is 447907. The next prime is 447943. The reversal of 447940 is 49744.

It can be written as a sum of positive squares in 2 ways, for example, as 322624 + 125316 = 568^2 + 354^2 .

It is a plaindrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 447899 and 447908.

It is not an unprimeable number, because it can be changed into a prime (447943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11179 + ... + 11218.

It is an arithmetic number, because the mean of its divisors is an integer number (78393).

2⁴⁴⁷⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

447940 is an abundant number, since it is smaller than the sum of its proper divisors (492776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447940 is a wasteful number, since it uses less digits than its factorization.

447940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22406 (or 22404 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 447940 is about 669.2831986536. The cubic root of 447940 is about 76.5138312098.

The spelling of 447940 in words is "four hundred forty-seven thousand, nine hundred forty".